<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
    <script>
     function test(){
        //Js获取当前日期时间及其它操作
        var myDate = new Date();
        console.log("年月日S：" + myDate.toLocaleDateString());
        console.log("时分秒：" + myDate.toLocaleTimeString());
        console.log("当前年份：" + myDate.getFullYear());
        console.log("当前月份：" + myDate.getMonth());
        console.log("当前日期：" + myDate.getDate());
        console.log("当前星期：" + myDate.getDay());
        console.log("当前时间为：" + myDate.pattern("yyyy-MM-dd HH:mm:ss"));
        console.log("小时字符串：" + myDate.pattern("yyyy-MM-dd HH:mm:ss").substring(11,13));
        console.log("分钟字符串：" + myDate.pattern("yyyy-MM-dd HH:mm:ss").substring(14,16));
        console.log("秒字符串：" + myDate.pattern("yyyy-MM-dd HH:mm:ss").substring(17,19));
     }
//日期格式化函数    
Date.prototype.pattern=function(fmt) {           
var o = {           
"M+" : this.getMonth()+1, //月份           
"d+" : this.getDate(), //日           
"h+" : this.getHours()%12 == 0 ? 12 : this.getHours()%12, //小时           
"H+" : this.getHours(), //小时           
"m+" : this.getMinutes(), //分           
"s+" : this.getSeconds(), //秒           
"q+" : Math.floor((this.getMonth()+3)/3), //季度           
"S" : this.getMilliseconds() //毫秒           
};           
var week = {           
"0" : "/u65e5",           
"1" : "/u4e00",           
"2" : "/u4e8c",           
"3" : "/u4e09",           
"4" : "/u56db",           
"5" : "/u4e94",           
"6" : "/u516d"          
};           
if(/(y+)/.test(fmt)){           
    fmt=fmt.replace(RegExp.$1, (this.getFullYear()+"").substr(4 - RegExp.$1.length));           
}           
if(/(E+)/.test(fmt)){           
    fmt=fmt.replace(RegExp.$1, ((RegExp.$1.length>1) ? (RegExp.$1.length>2 ? "/u661f/u671f" : "/u5468") : "")+week[this.getDay()+""]);           
}           
for(var k in o){           
    if(new RegExp("("+ k +")").test(fmt)){           
        fmt = fmt.replace(RegExp.$1, (RegExp.$1.length==1) ? (o[k]) : (("00"+ o[k]).substr((""+ o[k]).length)));           
    }           
}           
return fmt;           
} 
    </script>
</head>
    <body>
        <button onclick = "test();">
        click here
        </button>
    </body>
</html>